After taking the dump when I try to load the recorded file. Following exception is thrown on the screen

java.lang.ClassCastException: com.jrockit.mc.flightrecorder.internal.parser.binary.Reference
at com.jrockit.mc.flightrecorder.internal.parser.binary.MainParser.read(MainParser.java:124)
at com.jrockit.mc.flightrecorder.internal.parser.binary.MainParser.read(MainParser.java:49)
at com.jrockit.mc.flightrecorder.provider.RepositoryBuilder.createRepository(RepositoryBuilder.java:63)
at com.jrockit.mc.flightrecorder.provider.RepositoryBuilder.build(RepositoryBuilder.java:52)
at com.jrockit.mc.flightrecorder.internal.JRockitFileProvider.createRepositoryFromFile(JRockitFileProvider.java:26)
at com.jrockit.mc.flightrecorder.spi.FileProvider.createRepository(FileProvider.java:43)
at com.jrockit.mc.flightrecorder.FlightRecording.<init>(FlightRecording.java:69)
at com.jrockit.mc.flightrecorder.ui.FlightRecordingEditor.createRecording(FlightRecordingEditor.java:134)
at com.jrockit.mc.flightrecorder.ui.FlightRecordingEditor.initialize(FlightRecordingEditor.java:47)
at com.jrockit.mc.components.ui.design.DesignEditor.init(DesignEditor.java:85)
at org.eclipse.ui.internal.EditorManager.createSite(EditorManager.java:828)
at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:647)
at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:465)
at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595)
at org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:289)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2945)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2850)
at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2842)
at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2793)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2789)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2773)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2756)
at com.jrockit.mc.flightrecorder.ui.FlightRecordingOpener.open(FlightRecordingOpener.java:148)
at com.jrockit.mc.flightrecorder.ui.FlightRecordingOpener.openFile(FlightRecordingOpener.java:138)
at com.jrockit.mc.flightrecorder.ui.FlightRecordingOpener.openIfValidFile(FlightRecordingOpener.java:102)
at com.jrockit.mc.flightrecorder.ui.FlightRecordingOpener.open(FlightRecordingOpener.java:93)
at com.jrockit.mc.flightrecorder.controlpanel.ui.jobs.OpenRecordingFileJob$1.run(OpenRecordingFileJob.java:41)
at com.jrockit.mc.ui.misc.DisplayToolkit$SafeRunnable.run(DisplayToolkit.java:55)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4140)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3757)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at com.jrockit.mc.rcp.application.Application.start(Application.java:24)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:578)
at org.eclipse.equinox.launcher.Main.run(Main.java:1411)
at org.eclipse.equinox.launcher.Main.main(Main.java:1386)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.jrockit.mc.rcp.start.MCMain.run(MCMain.java:106)
at com.jrockit.mc.rcp.start.MCMain.main(MCMain.java:77)

We are not using custom jfr settings file, and are encountering this issue as well.

java.lang.ClassCastException: com.jrockit.mc.flightrecorder.internal.parser.binary.Reference
at com.jrockit.mc.flightrecorder.internal.parser.binary.MainParser.read(MainParser.java:124)
at com.jrockit.mc.flightrecorder.internal.parser.binary.MainParser.read(MainParser.java:49)
at com.jrockit.mc.flightrecorder.provider.RepositoryBuilder.createRepository(RepositoryBuilder.java:63)
at com.jrockit.mc.flightrecorder.provider.RepositoryBuilder.build(RepositoryBuilder.java:52)
at com.jrockit.mc.flightrecorder.internal.JRockitFileProvider.createRepositoryFromFile(JRockitFileProvider.java:26)
at com.jrockit.mc.flightrecorder.spi.FileProvider.createRepository(FileProvider.java:43)
at com.jrockit.mc.flightrecorder.FlightRecording.<init>(FlightRecording.java:69)
at com.jrockit.mc.flightrecorder.ui.FlightRecordingEditor.createRecording(FlightRecordingEditor.java:134)
at com.jrockit.mc.flightrecorder.ui.FlightRecordingEditor.initialize(FlightRecordingEditor.java:47)

It has been fixed, but unfortunately not yet released, since we haven't made a new release since we made the fix...
If you have a support contract, you could request a patch.

We have also seen it if you have a huge amount of exceptions in your recording, do you know which settings were used when creating the recording.
If you want to look at the exceptions, disabling them in the recording can of course be a problem :(